<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="first.first" method="get">
    账号<input type="text" name="username" ><br>
    密码<input type="password" name="psw"><br>
    自动登录<input type="checkbox" name="auto"><br>
    <input type="submit" name="123">
</form>
</body>
</html>